Study of nanocrystallization process in FeCrCuNbSiB amorphous alloys by Young's modulus measurements

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Date

2015

Journal Title

Journal ISSN

Volume Title

Publisher

Natl Inst Optoelectronics

Access Rights

info:eu-repo/semantics/closedAccess

Abstract

This paper presents the influence of nanocrystallization process on magnetic field dependence of Young's Modulus of Fe74-xCrxCu1Nb3Si13B9 (x=0, 2, 4, 8, 11) alloys. The samples were annealed between 450 degrees C and 600 degrees C for 1 hour under argon atmosphere to induce various nanocrystalline fractions. The variation in the microstructure upon annealing was examined by the X-ray spectrum data. Samples annealed at 500 degrees C or at higher temperature showed nanocrystalline alpha-Fe (Si) phase embedded in amorphous matrix. It was observed that the magnitude of field dependence of Young's modulus varies from 40% to a nearly zero as the saturation magnetostriction is reduced by nano size alpha-Fe(Si) grains. The results are interpreted partly in terms of internal stress relief and reduced magnetostriction in nanocrystalline samples.

Description

Keywords

Nanocrystalline materials, Young's modulus, magnetoelastic properties

Journal or Series

Journal of Optoelectronics and Advanced Materials

WoS Q Value

Q4

Scopus Q Value

Q4

Volume

17

Issue

9-10

Citation